HD6417021 Hitachi Semiconductor, HD6417021 Datasheet - Page 503

• Manufacturer Part Number: HD6417021
• Description: SuperH RISC engine
• Manufacturer: Hitachi Semiconductor

19.3.8
Table 19.13 Serial Communications Interface Timing
Case A: V
Case B: V
Case C: V
*: Normal products: Ta = –40 to +85°C for wide-temperature range products.
Item
Input clock cycle
Input clock cycle (clocked synchronization)
Input clock pulse width
Input clock rise time
Input clock fall time
Transmission data delay time (clocked
synchronization)
Receive data setup time (clocked
synchronization)
Receive data hold time (clocked
synchronization)
Serial Communications Interface Timing
CC
CC
CC
= 5.0 V ±10%, V
= 5.0 V ±10%, V
= 3.0 to 5.5 V, V
SCK0, SCK1
SS
SS
SS
Figure 19.40 Input Clock Timing
= 0 V, = 12.5 MHz, Ta = –20 to +75°C*
= 0 V, = 16.6 MHz, Ta = –20 to +75°C*
= 0 V, = 20 MHz, Ta = –20 to +75°C*
t
Symbol
t
t
t
t
t
t
t
t
SCKW
scyc
scyc
sckw
sckr
sckf
TXD
RXS
RXH
t
SCKr
Min
4
6
0.4
—
—
—
100
100
Cases A, B and C
t
scyc
t
SCKf
Max
—
—
0.6
1.5
1.5
100
—
—
Unit
t
t
t
t
t
ns
ns
ns
cyc
cyc
scyc
cyc
cyc
HITACHI 495
Figure
19.40
19.41